Furnace-door frame



April -13 1926.

E. WILLIAMS FURNACE noon FRAME Filed Feb. 20, 1925.

FIG; 4

'- IQVENTOB I I fizfm UNITED STATES Patented Apr. 13, 1926 EDWALBIDWILLIAMS, OF MONESSEN, PENNSYLVANIA.

FURNACE-DOOR FRAME.

Application filed February 20, 1925. Serial No. 10,609.

To all chem it may concern:

Be it known that I, EDWARD WILLIAMS, a citizen of the United States, anda resident of Monessen, in the county of VVestmoIe land and State ofPennsylvania, have in vented a new and useful Improvement inFurnace-Door Frames; and I do, hereby declare the followingv to be afull, clear, and exact description thereof.

My ..'invention relates to furnace door frames and has for its objectthe provision of a frame that may be made from standard metal parts,provided with an efficientcooling arrangement; having its welded jointsall disposed at locations where they are effectively cooled by fluidthat is circulated through the frame, and to .simplify and improvegenerally the structure and functioning of doors of this generalcharacter.

One form which my invention may take is shown in the accompanyingdrawing wherein Fig. 1 is a view, partially in front elevation andpartially in section, of a door constructed in accordance with myinvention; Fig. 2 is a rear elevational view there of; Fig. 8 isa viewtaken on the line 3-3 of Fig. 1; Fig. 4 is a view taken on the line 4-1of Fig. 1, and Fig. 5 is a view taken on the line 55 of Fig. 2.

The apparatus consists of an upper tube 6 that serves as a header, or ,amanifold, and a lower tube 7 that also serves as a manifold. The tubes 6and 7 are connected by smaller pipes 8 that are welded or otherwisesecured at their ends to said tubes, to serve as com municating passagesbetween the tubes 6 and 7. An angle-shaped member 9, preferabl of sheetsteel or the like, is welded to one 1- end of the tube. The front flangeof each angle 9 extending upwardly to a'point only about half way acrossthe front face of the tube, as indicated at 9. The backwardly extendingflange 9" of the angle 9 extends entirely-across the end of the tube.The flanges 9" are welded to the ends of the tube 6 so as to seal thesame against leakage of water therefrom, and the upper edges of theflanges '9 are welded to the front face of the tube.

A front, plate 10 is provided which fits between the inner edges of theflanges 9' and is welded thereto and welded at its upper and lower edgesto the tubes 6 and 7 The plate 10 preferably extends only half wayacross the front faces of the tubes 6 angles and the plates.

vided with an inlet opening 16 that may be lines.

A rear plate 11 is welded at its side edges to the rear edges of therearwardly projecting flanges 9 of the angles 9 The pipes 6 and 7 are ofa diameter greater-than the diameter of the pipes 8 so that spaces areleft between the pipes 8 and the front plate 10 and the rear plate 11.The plate 11 is.

preferably curved at its lower edge and such edge is Welded to the rearside of the tube 7 on the line 12. At its upper edge the plate 11 isprovided with a flange 13 by and 7 and is welded thereto on their medianf said tube to the chamber formed by the The tube 6 is proconnectedtoany suitable source of fluid supply. An outlet 17 extends throughv thewalls of the .tube 6, into communication with the chamber formed by theplates and angles above described. H The tube 6 is preferably of lessdiameter than the tube 7, because the rear plate 11 'is'cut aw'ayatthe..point 12 where it is welded to the tube 7 and 'it'is'desirabletoavoid reducing the thickness of the plate 11 at its upper end wheregreater strength "is required- The tube 6.'must therefore be of smallerdiameter in order thatv the plate 11 may be perfectly vertical.

It will be apparent that water or other I I cooling fluid introducedthrou h the opening 16 will flow through the tu e 6-, tube 7,

opening 15 and to the outlet 17, in the directions indicated by thearrows, thus effectively cooling the door frame throughout substantiallyits entire area. The connections'between various parts of the apparatusare preferably eflecte by electric weld mg,

and it will be noted that,'particularly where theplates are welded. tothe tubes, such effectively cooled than if the parts of the structurewere joined at other pomts. There is therefore less tendency for thejoints to be opened under action of heat from the furnace.

While the tube 7 is shown as being of arched form it will be apparentthat it may be so formed as to provide an opening through the frame ofsubstantially rectangular form, for example.

I claim as my invention:

1. A furnace door frame comprising an upper tube and a lower tube, frontand rear 'plates welded to the front and rear faces 01 said tubes atsubstantially the median lines thereof, and means for directing a streamof cooling fluid through said tubes.

2. A furnace door frame structure com-- prising an upper header member,a lower header member, an inlet to said upper header member,communicating passages between said header members, the lower headermember being open at one side, closure plates secured to the sides andends of said header members to form a cooling chamber, and an outletleading from said j'chamber.

3. A furnace door frame structure comprising an upper .tube member, aplate secured to each end of said upper tube member and extendingdownwardly, a lower tube member disposed between the lower ends of eachof said plates and having an opening at one of its ends, a conduitproviding communication between said tubes, side plates secured to eachside of said tubes and said end plates, and cover members secured to thelower ends of said side and end plates.

4. A furnace door frame structure comprising an upper tube member, aplate secured to each end of said u per tube member and extendingdownwardly, a lower tube 1 member disposed between the lower ends ofeach of said plates and having an opening at one of its ends, sideplates secured to each side of said tubes and said end plates, covermembers secured tothe lower ends of said side and end tween said tu es,an inlet opening being provided for the upper tube and an outlet openingbeing provided leading from the chamber formed by said plates.

5. A furnace door frame structure comprising an upper tube member, aplate seof said. tubes and said end plates, and cover members secured tothe lower ends of said side and end plates, the side plates being weldedto the faces of said tubes at substantially the median lines of saidtubes.

6. A furnace door frame composed of an upper tube member, a lower tubemember, end members closing the ends of said upper tube members andextending downwardly, side plates secured to each side of said tubes andto the front and rear edges of the end members, a plurality of pipeconnections providing communication between the said tubes and spacedlongitudinally thereof, the lower tube being open at each end, and inletand outlet passages being provided for permitting a flow of fluidthrough saidtubes and the chamber formed by said plates.

7. A furnace door frame comprising an upper tube and a lower tube, frontand rear plates welded to the front and rear faces of said tubes, andmeans for directing a stream of cooling fluid through said tubes.

8. A furnace door frame comprising an upper tube and a lower tube, frontand rear plates welded to the front and rear faces of said tubes to forma chamber, means for supplying fluid to said tubes, and communicatinpassages being provided between said tubes and said chamber.

In testimony whereof I, the said Enwann WILLIAMS, have hereunto set myhand.

EDlVARD lVILLIAMS.

lates, and pipe connections be-

